Eight hours a night, they told you. Maybe not.

Too little sleep can be harmful for health in the long run, but a sweeping study suggests that too much sleep also may not be ideal: It's associated with accelerated aging in nearly every organ in ...

Regular caffeine drinking can deprive the body of energy it needs for night-time rejuvenation – even if you don’t think ...

Here's something to keep you up at night. The post More Than This Many Hours of Sleep Is Linked to Early Death, Scientists ...

Caffeine is the world’s most widely used stimulant, and plenty of people use it to ward off morning grogginess or simply to ...

Sound Sleep Medical assists patients to determine whether sleep apnea might be behind their constant fatigue, loud snoring, and daytime drowsiness. Free ...

A new study in Nature reveals that people who sleep too little or too long show signs of accelerated biological aging and higher disease risk.

Scientists discovered that sleep deprivation damages a key brain circuit responsible for social memory, making it harder to recognize familiar individuals. In laboratory studies, caffeine restored ...

What is a sleep study? A sleep study, also known as a polysomnogram, is a diagnostic test that monitors various body functions while a person is asleep. It is most commonly used to diagnose sleep ...

Getting paid to sleep — you might say it’s a dream come true. The truth is, hospitals will pay you to sleep — or not sleep, in some cases — so they can learn more about sleep and sleep-related ...

Medicare Part B may cover sleep studies, including polysomnographies, to screen for obstructive sleep apnea (OSA) if a person shows clinical signs and their doctor provides medical evidence supporting ...